Correct Answer: D

Rationale: The correct answer is D, poor impulse control. Right hemisphere strokes commonly affect judgment and safety awareness, leading to poor impulse control. Choices A, B, and C are incorrect for this scenario. Deficits in the right visual field are associated with left hemisphere strokes, while the inability to discriminate words and letters is typically seen with left hemisphere damage. Motor retardation is more common in strokes affecting the motor areas of the brain, not specifically related to right hemisphere strokes.

Correct Answer: B

Rationale: The correct answer is to monitor for signs of infection. After major surgery, one of the priority nursing assessments is to watch for signs of infection, such as increased temperature, redness, swelling, or drainage at the surgical site. While providing analgesia is important for pain management, monitoring for infection takes precedence as it can lead to severe complications if not detected early. Assessing the surgical site for bleeding is crucial but is usually more relevant immediately after surgery. Monitoring the patient's vital signs is essential, but the specific focus on infection assessment is crucial in the immediate postoperative period.

Correct Answer: D

Rationale: Administering nitroglycerin is the priority action when a client is experiencing chest pain as it helps alleviate the pain caused by reduced blood flow to the heart. Oxygen can be beneficial, but nitroglycerin takes precedence in this situation. Aspirin can also be given, but nitroglycerin is the priority. Performing an ECG can provide valuable information but is not the first action to take in this scenario.

Correct Answer: B

Rationale: When a client has edema of both hands and thickened toenails, these conditions can impede accurate readings from the finger and toe locations. The earlobe is the best alternative site for the pulse oximeter probe in this scenario. Placing the probe on the earlobe will help ensure a more accurate measurement of oxygen saturation despite the issues with the hands and toenails. Therefore, the correct answer is to apply the pulse oximeter probe to the earlobe. Choices A, C, and D are incorrect because of the potential limitations presented by the edema and thickened toenails.

Correct Answer: C

Rationale: The correct answer is C because folic acid is essential for the production of red blood cells in adults and children, not just for pregnant women. Option A is incorrect as folic acid is not exclusive to pregnant women. Option B is incorrect as a balanced diet may not provide sufficient folic acid. Option D is incorrect since folic acid supplementation is also recommended for other reasons beyond deficiency.